中国铜矿资源找矿前景

从中国60年铜矿勘查程度研究入手,分析了铜矿床的产出与勘查程度的空间、强度的内在联系。统计结果表明,铜矿床的规模与勘查程度呈正相关,发现一个大型铜矿床所需要的钻探工作量为(12.5～16)×104m,发现一个中型铜矿床需要的钻探工作量至少为(4.8～5.48)×104m。面积约占中国2/3的中西部地区,铜矿的勘查程度低或极低,查明铜矿床的数量和储量仅占全国的17%和34%,西部地区还具有巨大的找矿潜力。选择勘查程度较低或极低、又具备铜矿成矿地质背景的区域作为铜矿成矿区带,在区带内利用已发现的铜矿床、矿(化)点和可能具有反映铜矿化显示的化探异常等因素圈定找矿远景区。在提高勘查程度就有可能发现更多资源储量的前提下,采用高勘查程度区铜资源储量的特征和参数,对低勘查程度区的铜资源储量进行类比预测,估算全国铜资源潜力为(5591～18483)×104t,其中西部低勘查程度区的潜在铜资源量为(5591～13660)×104t,可发现大型铜矿床30～70个。铜找矿远景区主要分布在西藏冈底斯、班公湖,西南三江,新疆东天山,内蒙古大兴安岭,中东部铜矿山深部及外围。

Copper exploration prospects in China

The quick responses and in-depth reports of the Chinese Journal of Geophysics and other Chinese sci.-tech. journals after the disastrous Wenchuan earthquake on 12 May 2008 are analyzed . Some important papers on the Wenchuan earthquake had been published in Chinese Journal of Geophysics as quick as possible and a lot of related papers were continued to be published in this magazine within two years. The fact shows that the quick response and in-depth reports of this journal were synchronous with foreign famous sci.-tech. journal.